Handle for a surface-treating appliance



FIG. 1 is a front and side perspective view of a handle for a surface-treating appliance showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof. 

We claim the ornamental design for a handle for a surface-treating appliance, as shown and described. 